These were probably 18C, 18B, 18A, and 18L, a F3 ABBA set built 11/46. 18C became CF7 2630 and then was wrecked 3/80. 18A became road slug 105. The other two were just retired. In the picture the first four head end cars are south of the diamonds with the CRI&P. The roof of the station can be seen above the third unit.